Shifter M/T: Service and Repair

NOTE: These repairs refer particularly to replacing reverse detent sleeve and/or reverse pull rod.

^ From mid-79 there is a new type reverse detent sleeve on the gearshift lever. It has a guide which prevents it from rotating on the gearshift lever and exerting forces on the reverse pull rod. It also has a slot which guides reverse pull rod, preventing it from rubbing the detent plate.

^ In case the reverse pull rod breaks, the old type reverse detent sleeve should also be replaced. It is 2 mm (0.08 in) longer than the old one. Therefore, the gearshift lever knob should be raised accordingly to permit free travel of the reverse detent sleeve. This is done by installing a 2 mm (0.08 in) thick spacer washer with diameter 13 mm (approx. 1/2 in) inside the gearshift lever knob. The retaining screw for the reverse detent sleeve should also be replaced. The new type screw is case hardened. After modification, check gearshift operation.





1. Disconnect gearshift lever cover. Remove four clips retaining cover. Lift up cover along gearshift lever. Be careful, not to damage electrical wires. There is no need to disconnect wires.





2. Remove lock pin. Use punch.







3. M 46:
- Un-plug connector for overdrive wire.
- Remove top of knob.





4. Lift up gearshift lever.





5. Remove gearshift lever knob. Position gearshift lever in a vise with soft jaws. Use plastic mallet to carefully knock off knob.





6. Remove detent knob. Remove screw. Lift off detent knob.





7. Remove pull rod. Remove pull rod, spring and detent sleeve assembly.





8. Remove detent sleeve. Remove screw on reverse gear detent sleeve.





9. Use new type detent sleeve. Reverse detent sleeve, P/N 1232 687-1, should be used.





10. Spacer washer in knob. When substituting new type detent sleeve for older type, gearshift knob must be raised to permit free travel for detent sleeve. Install 2 mm (0.08 in) thick and 13 mm (approx. 1/2 in) diameter spacer washer in knob.





11. Bend pull rod end. Bend out pull rod end approx. 20°. This will prevent rattle.





12. Install spring and new reverse detent sleeve. Apply a drop of locking fluid (Volvo P/N 277 916-3) on screw for pull rod. Attach pull rod to detent sleeve.





13. Install detent knob. Grease new pull rod. Use screw to install detent knob on new pull rod. Install detent knob and pull rod assembly on gearshift lever.





14. Install gearshift lever knob. Position gearshift lever in vise with soft jaws. Use plastic mallet to carefully knock knob into position





15. Assemble gearshift lever. Install upper part of gearshift lever on lower part in vehicle. Install lock pin.





16. Check reverse detent for correct operation. Engage first gear. Distance between detent plate and detent screw should be 0.5-1.5 mm (0.02-0.06 in). Adjust by moving detent plate. Also engage second gear and recheck distance.








17. M 46:
- Connect wire and install top of knob.
- Install connector for overdrive wire.
18. Install gearshift lever cover.